Average electric bill in South Dakota (SD)
A typical South Dakota household pays
$140a month · $1680 a year
That is 7% below the national average of $151, the 34th highest bill of the 51 states we track. It covers 986 kilowatt hours a month at 15.37¢ each.
Nobody pays the average
Dearest — July 2026
$176
Cheapest — October 2025
$115
The dearest month costs $61 more than the cheapest — 54% higher and it is air conditioning that does it. South Dakota runs about 800 cooling degree days a year, so the summer bill is where any efficiency gain shows up.
Why the bill is what it is
A bill is a rate multiplied by a quantity, and in South Dakota the price per kilowatt hour is doing most of the work. Comparing your own bill to this figure only tells you something once you know which of the two you could actually change — the rate is largely fixed, the quantity is not.
Heating and cooling are usually the largest movable part. Whether that means a heat pump, a more efficient air conditioner, or neither depends on South Dakota's prices rather than on general advice.
Figures are twelve-month averages across 449,777 residential accounts in South Dakota, from the US Energy Information Administration. They describe the state, not your house — square footage, insulation and what you keep the thermostat at move an individual bill a long way. See the South Dakota rate page for the underlying prices.
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